Low pressure check valve

Details Low pressure check valve Low pressure check valve

1990-01-22

1991-01-22

Nilson, Robert G.

Fluid handling

Line condition change responsive valves

Direct response valves

F16K 1514

Patent

active

049863100

ABSTRACT:
A valve assembly is disclosed for allowing fluid flow in a first direction and preventing fluid flow in a second direction. The valve assembly includes a housing for enclosing a substantially circular regulator assembly which extends diametrically across the housing. The regulator assembly comprises a hub portion which is positioned centrally within the housing and connecting members which extend radially toward a rim portion which is supported by the housing. The hub portion supports a disk-shaped substantially inflexible portion of the regulator assembly which extends over the connecting members to engage the rim portion and thereby prevent fluid flow in the second direction. The connecting members of the regulator assembly are adapted to flex and allow the disk portion to move off of the rim and thereby allow fluid flow through the valve in the first direction.

REFERENCES:
patent: 2758609 (1956-08-01), Dickert
patent: 3085591 (1963-04-01), Schneider
patent: 4188978 (1980-02-01), De Lorenzo
patent: 4712583 (1987-12-01), Pelmulder et al.
patent: 4776839 (1988-10-01), Doumenis

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